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CVE Record

CVE-2021-30937: A memory corruption vulnerability was addressed with improved locking.

A memory corruption vulnerability was addressed with improved locking. This issue is fixed in macOS Big Sur 11.6.2, tvOS 15.2, macOS Monterey 12.1, Security Update 2021-008 Catalina, iOS 15.2 and iPadOS 15.2, watchOS 8.3. A malicious application may be able to execute arbitrary code with kernel privileges.

UnknownCVSS not scoredNot KEV-listedUpdated
Glexia's TakeAutomated analysis

Security readout for executives and security teams

CVE-2021-30937 is an Apple kernel-level memory corruption issue. A malicious application could potentially run code with kernel privileges, which is one of the highest impact local outcomes. Apple fixed it across macOS, iOS, iPadOS, watchOS, and tvOS releases in December 2021. Exposure is most likely on Apple devices running older releases before macOS Big Sur 11.6.2, macOS Monterey 12.1, Security Update 2021-008 Catalina, iOS/iPadOS 15.2, watchOS 8.3, or tvOS 15.2. Prioritize remediation for business-managed Apple laptops and mobile devices because kernel privilege execution can undermine device security. Urgency is high for unpatched fleets, but evidence here does not support an active-exploitation claim. Mitigation focus: Update affected Apple devices to the fixed versions or later.; Prioritize managed endpoints and mobile devices that can run untrusted apps.; Check Apple security guidance for any product-specific replacement versions..

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Potential ATT&CK relevance

Conservative CVE-to-ATT&CK context

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CVE-2021-30937 mapping review

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Vulnerability profileCVE Program record
Severity
Unknown
CVSS
Not scored
Known Exploited
No
Published
Official CVE source material

CNA and ADP enrichment extracted from CVE v5

These fields come from the CVE record and ADP containers, not from Glexia's Take. They preserve time-varying source decisions such as CISA SSVC, KEV status, CVSS metrics, and provider references.

0CVSS vectors
0Timeline events
0ADP providers
7Source links

CVSS and timeline data

No CVSS vectors or timeline events were available in the normalized CVE source material.

Source materials

Affected products

Products and packages named in the record

VendorProductVersion / packageStatus
ApplewatchOSunspecifiedListed
AppleiOS and iPadOSunspecifiedListed
ApplemacOSunspecifiedListed
ApplemacOSunspecifiedListed
ApplemacOSunspecifiedListed
ApplemacOSunspecifiedListed
Weakness

CWE details

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